Cheapest priced copy (Commander Masters): $17.99 at Card Kingdom, near mint, their price list as of .
Extraplanar Lens 
Artifact · Mythic · Commander Masters · #381
Imprint — When this artifact enters, you may exile target land you control.
Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $17.99 to $109.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Masters | 381 | Mythic | $17.99 | $24.99 |
| Commander Masters | 604 | Mythic | — | — |
| Commander Masters | 656 | Mythic | $18.99 | $22.99 |
| Kaladesh Inventions | 38 | Special | — | $109.99 |
| Mirrodin | 169 | Rare | $21.99 | $32.99 |